Seulong and IU release collaborative single Nagging

We previously reported that another version of We Fell In Lovewould be released early in June. Nothing much was known about it, and many believed that CNBLUE’s Jung Yonghwa and SNSD’s Seohyun would be next to sing the song. It turns out that it’s not those the YongSeo couple at all, but rather, two singers that are completely irrelevant.